Hall field-induced resistance oscillations in MgZnO/ZnO heterostructures
Abstract
We report on nonlinear magnetotransport in a two-dimensional electron gas hosted in a MgZnO/ZnO heterostructure. Upon application of a direct current, we observe pronounced Hall field–induced resistance oscillations (HIRO), which are well known from experiments on high-mobility GaAs/AlGaAs quantum wells. The unique sensitivity of HIRO to the short-range component of the disorder potential allows us to unambiguously establish that the mobility of our MgZnO/ZnO heterostructure is limited by impurities residing within or near the two-dimensional (2D) channel. This demonstration that HIRO can be realized in a system with a much lower mobility, much higher density, and much larger effective mass than in previously studied systems highlights the remarkable universality of the phenomenon and its great promise for use in studies of a wide variety of emerging 2D materials.
Additional Information
© 2017 American Physical Society. Received 30 November 2016; revised manuscript received 14 January 2017; published 30 January 2017. We thank I. A. Dmitriev for discussions and comments on the manuscript, P. Herlinger for assistance with the microscope, and A. Zudova for assistance with data acquisition. This work was supported, in part, by the US Department of Energy, Office of Basic Energy Sciences, under Grant No. DE-SC002567 (University of Minnesota) and by Grant-in-Aids for Scientific Research (S) No. 24226002 from MEXT, Japan (University of Tokyo).Attached Files
Published - PhysRevB.95.041411.pdf
Accepted Version - 1702.02557.pdf
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Additional details
- Eprint ID
- 102304
- Resolver ID
- CaltechAUTHORS:20200402-145517903
- Department of Energy (DOE)
- DE-SC002567
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT)
- 24226002
- Created
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2020-04-02Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field